Secure Vehicular Communication Using Blockchain Technology

Intelligent transportation systems are also called vehicular ad hoc networks (VANETs). They assure timely and reliable vehicle-to-infrastructure (V2I) and vehicle-to-vehicle (V2V) communication to increase traffic flow quality and improve the safety of the road. The vehicular ad hoc network (VANET) is a promising technology for the future as it improves drivers’ comfort levels while also improving their safety measures. The main goal of VANETs is to assist communication between vehicles and roadway units (RSUs) through networks of vehicle-to-RSU (V2R) and vehicle-to-vehicle (V2V). Due to the growing number of smart cities across the globe and innovation in the technology field, VANET apps have tremendous potential for growth. Accidents in roadside and traffic congestion are growing every day because of the rapid increase in the day-to-day use of vehicles. In order to prevent emergencies and to resolve the problem of vehicle congestion, coordination between vehicles is important. Because of its wireless technology, VANET is vulnerable to WLAN attack node, for example, spoofing attack, DoS (denial of service) attack, replay attack, and Sybil attack. The network could be affected, or privacy and protection could be impacted. The Internet of vehicles platform is safe and also allows contact between vehicles. If a server fails or a natural disaster disrupts regular server contact, a centralized database will still operate. If more cars are linked, there will be more money required to sustain the system. To prevent emergencies and minimize traffic, a secure distributed system is required. We propose a new trust-based blockchain-based protocol to address fundamental issues in the current VANET protocol and improve security and privacy. The proposed solution is based on advanced blockchain technology. We set up a new blockchain for the exchange of event messages among vehicles. We employ a public blockchain, which will guarantee the security of the system and message trustworthiness.